Oval brass glass-fronted pendant reliquary theca housing first-class ex ossibus (of the bone) relic of Saint Gorgonius of Nicomedia.The relic is affixed to a a red silk ground surrounded by gilt paperolle ornamentation and identified in Latin on a manuscript cedula label as S. Gorgonÿ, M. (Saint Gorgonius, Martyr). On the back, under a protective cap, the theca is secured with a perfectly preserved seal of red Spanish wax bearing an imprint with a coat of arms of Fr. Antonio Cantoni (†1781), Bishop of Faenza, Italy (1742–1767) and Archbishop of Ravenna, Italy (1767–1781).
Saint Gorgonius of Nicomedia (d. 304) was a Christian imperial official in Emperor Diocletian's court in Nicomedia. During the Diocletianic Persecution of 303, he and chamberlain Dorotheus protested the brutal torture of fellow servant Peter Cubicularius. For their defiance, they were arrested, tortured, and strangled. Diocletian ordered their bodies thrown into the sea, but Christians recovered them. Hiss relics were later venerated in Rome and Gorze Abbey, France. His feast is September 9.